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Augmented degradation of dyed organic pollutant using Fe2O3 supported on char formed from poultry slaughterhouse waste

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Abstract

In this work, a novel support for an iron-based catalyst was prepared and employed for Ponceau 4R degradation by photo-Fenton reaction. To this, poultry waste was used for producing char, which was subsequently used to prepare the Fe2O3/Char composite. Process parameters, including catalyst dosage, pH, and hydrogen peroxide concentration, were investigated. The characterization analysis indicated that the textural properties of the composite were improved after impregnation with Fe2O3. The composite exhibited excellent catalytic activity, achieving a decolorization efficiency of 97% at 45 min and 81.06% organic carbon removal at 300 min. In addition, the material showed acceptable performance after four consecutive cycles. Furthermore, a scavenger test was performed to investigate the major reactive species involved in the Ponceau 4R oxidation, and a plausible mechanism for the respective reaction was projected. Therefore, the results of this research demonstrate that this material can be used as a potential catalyst for the abatement of dyed molecules from wastewater.

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The datasets used and analyzed during the current study are available from the corresponding author upon reasonable request.

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Funding

The authors would like to thank CAPES (Coordination for the Improvement of Higher Education Personnel) and CNPq (National Council for Scientific and Technological Development) for their financial support.

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Conceptualization: [Patrícia Grassi, Angélica Fátima Mantelli Streit]; Methodology: [Patrícia Grassi, Angélica Fátima Mantelli Streit]; Formal analysis and investigation: [Patrícia Grassi, Angélica Fátima Mantelli Streit, Luana Rabelo Hollanda]; Writing—original draft preparation: [Patrícia Grassi, Guilherme Luiz Dotto, Luana Rabelo Hollanda]; Writing—review and editing: [Guilherme Luiz Dotto, Edson Luiz Foletto]; Supervision: [Edson Luiz Foletto]. All authors read and approved the final manuscript.

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Correspondence to Guilherme Luiz Dotto.

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Grassi, P., Streit, A.F.M., Hollanda, L.R. et al. Augmented degradation of dyed organic pollutant using Fe2O3 supported on char formed from poultry slaughterhouse waste. Environ Sci Pollut Res 30, 104056–104066 (2023). https://doi.org/10.1007/s11356-023-29783-0

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  • DOI: https://doi.org/10.1007/s11356-023-29783-0

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